Home / 31,179.27-46,768.56-8,991.92

Finding the Fourth Proportional to 31,179.27, 46,768.56 and 8,991.92

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Solution

The fourth proportional to 31,179.27, 46,768.56 and 8,991.92 is: 13,487.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,179.27 : 46,768.56 = 8,991.92 : x
  2. Step 2: Convert to fraction form
    31,179.27/46,768.56 = 8,991.92/x
  3. Step 3: Cross multiply
    31,179.27x = 46,768.56 × 8,991.92
  4. Step 4: Simplify right side
    31,179.27x = 420,539,266.96
  5. Step 5: Solve for x
    x = 420,539,266.96/31,179.27
  6. Step 6: Final answer
    x = 13,487.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.